Let your end-users zoom in on your images! All the pictures are background images in 'thumb' containers. Each container has a unique ID, which is used when adding the images. In other words, when adding images to the thumb containers, you need to apply them 'to this element ID only'.
There is an attribute to the thumb containers that make the image appear zoomed in, and also two attributes to the container '.vu' to make the images go back to their original size again.